Test method for sealing effect of hand-held paper bag edge sealing
Abstract: The edge bandage of the portable paper bag is mostly bonded with adhesive. The advantages and disadvantages of the sealing effect of each edge will directly affect the service life of the bag. Taking a production of paper bags box for installing the test sample liquor by Labthink has XLW (M) intelligent electronic tensile tester adhesion values detected side sealed edges, and the test process, test principle, The equipment parameters and scope of application are introduced to provide a reference for enterprises to monitor the bonding effect of the edge of the paper bag.
Keywords: bonding effect, adhesion value, bond strength, portable paper bag, edge banding, intelligent electronic tensile testing machine
1 , meaning
Most of the portable paper bags are made of high quality, high grade paper, kraft paper, etc. They are simple, generous, and have good printability. The printed patterns are exquisite, and are often used as clothing paper bags, gift bags, food bags, wine bags, shopping bags. Wait. During the use of the portable paper bag, cracking of the bottom or side seal of the bag often occurs, which seriously affects the service life of the portable paper bag and the weight or quantity of the articles that can be contained, and causes waste of resources.
The easy cracking phenomenon of the edge of the portable paper bag is mainly related to the poor adhesion of the edge banding. The sealing edge of most hand-held paper bags is sealed by an adhesive, and if the adhesive used is more durable Poor, sensitive to temperature and humidity, poor adhesion on the surface of the paper bag, etc., the portable paper bag is easy to crack during the use of the seal. Therefore, by selecting a suitable adhesive, improving the sealing process ( such as sealing the eye ), and improving the bonding effect of the edge of the paper bag, and strengthening the detection of the adhesive strength, the edge of the hand-held paper bag is reduced. Probability, an effective means of improving its load-bearing capacity.
2 , test samples
The test samples tested in this paper are hand-made paper bags produced by a company for holding boxed liquor, and the bond strength of the side seals is tested.
3 , testing basis
The product standard that can be referred to in the test sample of this test is QB/T 4379-2012 " Handbag ". In this standard, the evaluation index of the sealing effect is the sealing adhesive strength. The specific test procedure is based on GB/T. 12914-2008 " Determination of Tensile Strength of Paper and Paperboard " was carried out by constant speed drawing.
4 , testing equipment
The testing equipment used in this test is XLW (M) intelligent electronic tensile testing machine, which is independently developed and produced by Jinan Languang Electromechanical Technology Co., Ltd.
4.1 Test principle
The bond strength test is the force required to peel off a certain width of the seal. The device is equipped with two upper and lower clamps, the upper clamp can be moved up and down, is a moving clamp, and is equipped with a force value sensor, and the lower clamp remains stationary. During the test, the two free ends of the sample are respectively clamped in the upper and lower clamps, and then the peeling failure or tensile failure occurs with the separation of the two clamps. The force value sensor records the damage of the sample in real time during the test. The force value generated, thereby obtaining the adhesive strength of the sample. In addition, the inside of the device is also equipped with a displacement sensor, which can be used to monitor the displacement change of the sample during the test in real time to obtain indicators such as deformation rate and elongation.
4.2 Scope of application
- Film type: Test of film packaging performance such as bond strength, peel strength, tensile strength and deformation rate, tensile strength, heat seal strength, puncture force and shear performance.
- Container type: puncture force, drawing force of infusion bag cover, puncture / pull force of soft rubber stopper , opening force of combined cover, tearing force of oral liquid cover, puncture / pull force, peeling of hose cover Force, yogurt cup, jelly cup cover film opening force and other container packaging performance test,
- Others: the drawing force of the toothbrush bristles, the breaking force of the contact lens, the 90° peeling force of the tape, the unwinding force of the tape, and the like.
- Applicable standards: In addition to the above medical packaging standards, the equipment can meet ISO 137 , GB 8808 , GB/T 1040.1-2006 ~ GB/T 1040.4-2006 , GB/T 1040.5-2008 , GB/T 4850-2002 , GB/ More than 20 domestic and international standards such as T 12914-2008 , QB/T 2358 , ASTM E4 , ASTM D882 , and ASTM D1938 .
4.3 Equipment parameters
- Available in 100 N , 200 N , and 500 N ranges.
- Seven test speeds are available: 50 mm/min , 100 mm/min , 150 mm/min , 200 mm/min , 250 mm/min , 300 mm/min , 500 mm/min .
- The sample is pneumatically clamped.
- The device has a stroke of 600 mm .
- Integrate seven independent test procedures, such as stretching, peeling, tearing, and heat sealing, to meet different testing needs.
- Support Lystem TM laboratory data sharing system to facilitate user management of test reports and test results.
5 , the test process
(1) from the bag side seal linesman samples taken 15 ± 0.1 mm wide sample 5, the length should reach at least 300 mm, and the adhesive side of the edge seal located intermediate position of the specimen.
(2) Open the test equipment, the test set speed of 50 mm / min, specimen width of 15 mm, the number of samples is 5 and other parameters.
(3) The initial distance of the adjustment fixture is 250 mm , take one of the specimens, and clamp the two ends of the specimen into the upper and lower fixtures of the equipment so that the long axis direction of the specimen is parallel to the centerline of the two fixtures. .
(4) Click the test option, the test starts, the upper clamp moves upward according to the set speed, the device displays the force value curve generated during the test in real time, and automatically calculates and displays the adhesive strength of the tested sample after the sample is finished. Test Results.
(5) Repeat (3) and (4) operations until all 5 samples have been tested.
6 , test results
The adhesion strength of the five side edge seal samples tested in this test were 34.152 N/15mm , 35.041 N/15mm , 36.514 N/15mm , 36.091 N/15mm , 37.026 N/15mm , and the test result of Zui was 5 The average of the test results is 35.765 N/15mm .
7 , conclusion
The adhesive strength of the edge of the paper bag is an important factor in determining whether it is prone to cracking during use. To a certain extent, it determines the weight, quantity, volume, etc. of the product that the paper bag can hold, and relates to the service life of the paper bag. In this paper, the XLW (M) intelligent electronic tensile testing machine is used to test the adhesive strength of the side seal of the sample of the toned wine products produced by a certain enterprise. The testing equipment is easy to operate and has a high degree of intelligence. The detection process is simple and the test results are The repeatability is good, the test precision is high, and the adhesive effect of the edge seal of the portable paper bag can be accurately detected. Labthink is a high-tech enterprise specializing in R&D, production and packaging inspection services for packaging inspection equipment. It is committed to providing high-precision packaging inspection equipment and intimate and efficient packaging inspection services to customers around the world. Covers the physical and mechanical properties of packaging, such as barrier properties, impact resistance, puncture resistance, heat sealing performance, sealing performance, solvent residue, evaporation residue, etc. For understanding the relevant testing equipment, you can log in to Jinan Languang Company or call us. . The more you understand, the more you trust! Jinan Languang Electromechanical Technology Co., Ltd. is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry!
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